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Višečestična fizika na kvantnom prstenu ; Many-body physics in quantum ring

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  • معلومة اضافية
    • Contributors:
      Pezer, Robert; Buljan, Hrvoje
    • بيانات النشر:
      Sveučilište u Zagrebu. Prirodoslovno-matematički fakultet. Fizički odsjek.
      University of Zagreb. Faculty of Science. Department of Physics.
    • الموضوع:
      2021
    • Collection:
      Croatian Digital Theses Repository (National and University Library in Zagreb)
    • نبذة مختصرة :
      Rad predstavlja nekoliko odabranih tema iz područja kvantnih prstenova koji opisuje neke značajke međudjelujućih višečestičnih sistema. U ovom radu predstavljamo fizičke značajke poput energijskih spektara gdje polazimo od prikaza u sistemima koje možemo promatrati kao jednočestične do nekoliko jednostavnih višečestičnih međudjelujućih primjera (uglavnom sistemi nekoliko čestica). Posebno prikazujemo utjecaj magnetskog polja na značajke kvantnih prstenova poput periodičnosti spektra, stalnih struja sve do jednočestičnih matrica gustoće (korelacije u sistemu). Posljednja cjelina u radu je prikaz nekoliko primjera neravnotežne kvantne dinamike modeliranjem vremenske evolucije sistema. U dodacima je pregled numeričkih metoda te izbor programske podrške razvijene za potrebe ovog rada. ; The paper presents several selected topics from the field of quantum rings that describe some features of interacting multiparticle systems. In this paper, we present physical properties such as energy spectra where we start from representations in systems that can be viewed as single-particle to a few simple multi-particle interacting examples (mainly systems of several particles). In particular, we show the influence of the magnetic field on the physical properties of quantum rings such as the periodicity of the spectrum, persistent currents, and single-particle density matrices (correlations in the system). The last part of the paper presents several examples of nonequilibrium quantum dynamics by modelling the time evolution of the system. The appendices provide an overview of numerical methods and a selection of software developed for the purposes of this paper.
    • File Description:
      application/pdf
    • Relation:
      https://zir.nsk.hr/islandora/object/pmf:10218; https://urn.nsk.hr/urn:nbn:hr:217:778039; https://repozitorij.unizg.hr/islandora/object/pmf:10218; https://repozitorij.unizg.hr/islandora/object/pmf:10218/datastream/PDF
    • الدخول الالكتروني :
      https://zir.nsk.hr/islandora/object/pmf:10218
      https://urn.nsk.hr/urn:nbn:hr:217:778039
      https://repozitorij.unizg.hr/islandora/object/pmf:10218
      https://repozitorij.unizg.hr/islandora/object/pmf:10218/datastream/PDF
    • Rights:
      http://rightsstatements.org/vocab/InC/1.0/ ; info:eu-repo/semantics/openAccess
    • الرقم المعرف:
      edsbas.738025BA